[ Back to EurekAlert! ]

Contact: Breehan Gerleman Lucchesi
DOE/Ames Laboratory

Ultra-Fast Laser Causes Magnetic Switching

Caption: Magnetic structure in a colossal magneto-resistive manganite is switched from antiferromagnetic to ferromagnetic ordering duringabout 100 femtosecond laser pulse photo-excitation. With time so short and the laser pulses still interacting with magnetic moments, the magnetic switching is driven quantum mechanically -- not thermally. This potentially opens the door to terahertz and faster memory writing/reading speeds.

Credit: US Deptartment of Energy's Ames Laboratory

Usage Restrictions: None

Related news release: Quantum tricks drive magnetic switching into the fast lane

[ Back to EurekAlert! ]